Featuring a precision CNC aluminium construction, this bottom bracket delivers fantastic strength & consistency while also keeping weight to a minimum. FSA has also equipped this model with high-quality bearings that provide maximum durability & minimal friction on your travels. FSA is proud to introduce the Premium Series, featuring high-quality bottom brackets meticulously designed to meet the demanding needs of today’s bicycle constructors & customers. Precision CNC products & high-quality bearings are the key points of the Premium Series, developed to reach the highest level of performance. Manufacturer's Part Number: 200-0044000600